package com.example.springcloud;

import com.netflix.hystrix.contrib.metrics.eventstream.HystrixMetricsStreamServlet;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.cloud.client.circuitbreaker.EnableCircuitBreaker;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.context.annotation.Bean;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: ws
 * Date: 2024-02-06
 * Time: 20:54
 */

@SpringBootApplication
@EnableEurekaClient
@EnableCircuitBreaker// 用来启动 fallback
public class PaymentHystrixMain8001 {

    public static void main(String[] args) {
        SpringApplication.run(PaymentHystrixMain8001.class, args);
    }


    /**
     * 此配置是为了服务监控而配置，与服务容错本身无关，解决 springcloud 升级后的问题
     * ServletRegistrationBean 因为 springboot 的默认路径不是 hystrix.stream，所以需要手动配置
     * 只要在自己的项目里配置上下面的 servlet 即可
     * @return
     */
    @Bean
    public ServletRegistrationBean getServlet() {
        HystrixMetricsStreamServlet streamServlet = new HystrixMetricsStreamServlet();
        ServletRegistrationBean registrationBean = new ServletRegistrationBean(streamServlet);
        registrationBean.setLoadOnStartup(1);
        registrationBean.addUrlMappings("/hystrix.stream");
        registrationBean.setName("HystrixMetricsStreamServlet");
        return registrationBean;
    }

}
